Home / 147,190.10-203,123.31-83,528.96

Finding the Fourth Proportional to 147,190.10, 203,123.31 and 83,528.96

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Solution

The fourth proportional to 147,190.10, 203,123.31 and 83,528.96 is: 115,270.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,190.10 : 203,123.31 = 83,528.96 : x
  2. Step 2: Convert to fraction form
    147,190.10/203,123.31 = 83,528.96/x
  3. Step 3: Cross multiply
    147,190.10x = 203,123.31 × 83,528.96
  4. Step 4: Simplify right side
    147,190.10x = 16,966,678,836.06
  5. Step 5: Solve for x
    x = 16,966,678,836.06/147,190.10
  6. Step 6: Final answer
    x = 115,270.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.